LIBREOFFICE = r"C:\Program Files\LibreOffice\program\soffice.exe"
Libre Office載點: https://zh-tw.libreoffice.org/%E4%B8%8B%E8%BC%89/
MODA ODF載點: https://odf.tw/downloadarea/7
LIBREOFFICE = r"C:\Program Files\MODA ODF Application Tools\program\soffice.exe"
file = filedialog.askopenfilename( filetypes=[ ("Excel 97-2003", "*.xls") ] )
wb = load_workbook( filename )